of the world's cleanest gas turbines are now powering some of america's biggest cities. siemens. answers. >> bill: barack and hard place segment tonight. former president bill clinton signed the defense of marriage act in 1996. that law says that marriage between a man and a woman rewoo remain the legal standard in america. in 2009 president clinton recanted. he now favors gay marriage. in 2004 his wife hillary clinton also opposed gay marriage but now she, too has changed her opinion. >> i do not support gay marriage but i support civil union. >> lgbt americans are our league colleagues, our teachers, our soldiers, our friends, our loved ones. and they are full and equal citizens and deserve the rights of citizenship. that includes marriage. that's why i support marriage for lesbian and gay couples. >> bill: but, what? 9 years ago she didn't. with us now to analyze alan colmes and monica crowley. this is all about evolving, i understand from colmes. evolving. we are evolving. >> everybody is evolving now. evolving is the new black, right? look, this is a very slickly produced video. it'